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2161 papers in math.CO · page 1

  1. math.AC 2026-05-22 reviewed
    Toric ideals encode 3-point function relations via designs and pseudomanifolds

    Incidence toric ideals and three-point functions

    Barbara Betti +3

  2. math.CO 2026-05-22 reviewed
    Three-row Chomp has exactly one winning first move for any length

    Unique Winning Opening Move in Three-Row Chomp

    Erez Sheiner

  3. math.CO 2026-05-22 reviewed
    Strong majority colorings bounded by 2Δ+1 colors

    Strong majority colorings of graphs

    Rafa{\l} Kalinowski +3

  4. math.CO 2026-05-22 reviewed
    Square grids have the most spanning trees among fixed-vertex rectangles

    A Balancing Theorem for Spanning Trees of Rectangular Grid Graphs

    Jiechen Zhang

  5. math.CO 2026-05-22 reviewed
    Spectral radius bound yields k edge-disjoint 2-connected factors

    Spectral radius and edge-disjoint connected factors of graphs

    Xinying Tang +1

  6. math.CO 2026-05-22 reviewed
    Semifields of order 256 with nucleus order 16 fully classified

    New invariants for rank metric codes, with applications to the classification of rank two semifields of order 256

    Jack Gilchrist +3

  7. math.CO 2026-05-22 reviewed
    Planar graphs without 4-cycles or shared triangle vertices admit flexible DP-4-colorings

    Flexible DP-4-coloring of planar graphs without 4-cycles and intersecting triangles

    Shu Fang +2

  8. math.CO 2026-05-22 reviewed
    Projective planes force some intersection size to repeat on Θ(q^{3/2}) lines

    Balanced intersection size distributions in projective planes

    Zolt\'an L\'or\'ant Nagy +1

  9. math.CO 2026-05-22 reviewed
    Three-ball Hamming intersection rate given explicitly by α and β

    List Reconstruction Problem with List Size Two

    Binh Vu (1) +6

  10. cs.LG 2026-05-22 reviewed
    Low dimension suffices for near-max retrieval margins

    Is Dimensionality a Barrier for Retrieval Models?

    Kiril Bangachev +3

    4 Piths
  11. math.CO 2026-05-22 reviewed
    Graph theory decides irreducible realizations for trace-zero spectra

    The INIEP: Irreducible and Positive Realizations

    C. R. Johnson +2

  12. math.CO 2026-05-22 reviewed
    Formula counts Pfaffian orientations on punctured cellulated surfaces

    The number of Pfaffian orientations on punctured polygonally cellulated surfaces

    Sajal Mukherjee +2

  13. math.CO 2026-05-22 reviewed
    Any sign pattern realized in Ehrhart polynomials

    Explicit Construction of Polytopes whose Ehrhart Polynomials Realize any Given Sign Pattern

    Feihu Liu +2

  14. math.CO 2026-05-22 reviewed
    Finite states give rational counts for m-adjacency 132-avoiders

    Finite-state enumeration of adjacency-constrained 132-avoiding permutations

    Teruki Mayama +1

  15. math.CO 2026-05-22 reviewed
    AMDS constacyclic codes at length 4p^ς produce quantum AMDS codes

    AMDS and quantum AMDS Constacyclic codes of length $4p^\varsigma $ over $\mathbb{F}_{{p}^{m}}$

    Manasa K J +2

  16. cs.LG 2026-05-22 reviewed
    k-WL cannot distinguish all simple-spectrum graphs for any k

    Weisfeiler-Leman Is Incomplete on Simple Spectrum Graphs, so Canonicalize Them

    Snir Hordan +2

  17. math.CO 2026-05-22 reviewed
    Line-free sets in F_p^3 exceed hypercube by p^{3/2} term

    A superlinear improvement on line-free sets in $\mathbb{F}_p^3$

    Benedek Kov\'acs

  18. math.CO 2026-05-22 reviewed
    Edge counts in random-graph polytopes obey central limit theorems

    Central limit theorems for high dimensional lattice polytopes: cosmological polytopes

    Torben Donzelmann +3

  19. math.CO 2026-05-22 reviewed
    Iterative proof raises lower bound on H-blowup order

    Finding blowups one vertex at a time

    Jacob Fox +2

  20. math.CO 2026-05-22 reviewed
    Uniform distribution maximizes independent-set sampling probability

    Maximum Probability of Independence in Transitive Matroids

    Mladen Kova\v{c}evi\'c

  21. math.CO 2026-05-22 reviewed
    q-Polymatroids equate higher supports and rank weights

    Higher Rank-Support Weights and q-Polymatroids

    Koji Imamura +2

  22. math.CO 2026-05-22 reviewed
    Per-vertex cliques tighten Q-index bound

    Localized Tur\'{a}n-type inequalities for $Q$-index

    M. Rajesh Kannan +2

  23. math.AG 2026-05-22 reviewed
    Bound on intersections fixes code parameters for Hermitian varieties up to dim 4

    Functional codes arising from rank $n$ Hermitian varieties and hypersurfaces in low dimensions

    Subrata Manna

  24. math.CO 2026-05-22 reviewed
  25. math.RT 2026-05-22 reviewed
    Group character degree sums relate to twisted involution counts

    Complex Representations of Groups and Involutions of its Automorphisms

    Venkata Subbaiah Yerrapati +2

  26. math.NT 2026-05-22 reviewed
    Iwasawa λ-invariants distribute over isogeny graphs as ℓ varies

    Distributions of Iwasawa $\lambda$-invariants of $\mathbf{Z}_p$-towers over supersingular isogeny graphs

    Taiga Adachi +3

  27. cs.IT 2026-05-22 reviewed
    Code equivalence reduces to GI exactly when hull dimension is at most 1

    The Closure of LCD-to-GI Reductions via Generalized Inner Products

    Keita Ishizuka

  28. math.DS 2026-05-21 reviewed
    Polynomial return sets syndetic iff polynomials linearly independent

    Sets of large values of polynomial multi-correlation functions

    Vitaly Bergelson +1

  29. math.CO 2026-05-21 reviewed
    Full-chord sets reach polylog Buffon discrepancy

    Polylogarithmic Full-Chord Buffon Discrepancy

    Samuel Korsky

  30. math.CO 2026-05-21 reviewed
    Affine star matrices reduce to Egyptian fraction equation

    Star-Shaped Integral Cartan-Type Matrices and an Egyptian-Fraction Classification of Affine Weighted Trees

    Emilio Torrente-Lujan

  31. math.GR 2026-05-21 reviewed
    Explicit formulas for subalgebra zeta functions of Heisenberg groups

    Symplectic lattice counting and zeta functions of higher Heisenberg groups

    Jianhao Shen +1

  32. math.CO 2026-05-21 reviewed
    Generating function proves three formulas for complete Bell polynomials

    Concise and elegant proofs of three formulas for complete Bell polynomials

    Feng Qi

  33. cs.IT 2026-05-21 reviewed
    Sum-free functions match Reed-Muller subcodes at 3/2 distance

    On Reed-Muller subcodes, Grassmannian partitions and sum-free functions

    Philipp Heering +2

  34. math.CO 2026-05-21 reviewed
    Exact formula proves Betti recurrence for path cut complexes

    Betti Numbers of Cut Complexes of Squared Paths and a Recurrence Conjecture

    Yutong Zhang +1

  35. math.CO 2026-05-21 reviewed
    Grove polynomials dualize quasisymmetric Schubert cells

    Grove polynomials and $K$-theoretic quasisymmetry

    Philippe Nadeau +2

  36. math.RA 2026-05-21 reviewed
    Graded fundamental theorems extend to fermionic matrix tuples

    Fermionic matrices and super Cayley--Hamilton algebras

    Claudio Procesi

  37. math.CO 2026-05-21 reviewed
    Path graph minimizes p-energy for every p at least 2

    Path-Minimality of $p$-Energy for Connected Graphs

    Yinchen Liu +1

  38. math.CO 2026-05-21 reviewed
    Structural results yield regular graphs with MMS property

    The Manickam-Mikl\'os-Singhi Property in Graphs and Hypergraphs

    Adam D\v{z}avoronok

  39. math.CO 2026-05-21 reviewed
    All lattice path matroids are Ehrhart positive

    Ehrhart positivity for lattice path matroids

    Luis Ferroni +2

  40. math.CO 2026-05-21 reviewed
    Three bounded-complexity notions for fuzzy functions are equivalent

    Holographic functions and neural networks

    Balazs Szegedy

  41. math.CO 2026-05-21 reviewed
    Matrix rational series create self-similar tilings in any dimension

    On the self-similarity of rational power series with matrix coefficients

    Pierre-Emmanuel Caprace +1

  42. math.CO 2026-05-21 reviewed
    0/1-polytopes uniquely decompose into indecomposables

    Indecomposability of 0/1-polytopes

    Akihiro Higashitani +2

  43. math.CO 2026-05-21 reviewed
    Ore degree-sum condition yields near-perfect H-tilings

    An Ore-type condition for $H$-tilings in graphs

    Yuping Gao +3

    3 Piths
  44. math.CO 2026-05-21 reviewed
    Degree sum condition ensures almost H-tiling in large graphs

    An Ore-type condition for $H$-tilings in graphs

    Yuping Gao +3

    3 Piths
  45. cs.CR 2026-05-21 reviewed
    Exact hidden paths recovered from noisy high-dimensional observations

    Exact Hidden Paths in Noisy High Dimensional Path Spaces

    Victor Duarte Melo

  46. math.RT 2026-05-21 reviewed
    Categorical Lusztig cycles form silting collections in weave sheaves

    Categorical Lusztig cycles and weave schobers

    Roger Casals +1

  47. math.CO 2026-05-21 reviewed
    Exact Turán number obtained for f3-blow-up of F5

    On the Tur\'an number of blow-ups of $\mathcal{F}_5$

    Xiamiao Zhao +6

  48. math.CO 2026-05-21 reviewed
    Ramsey numbers for many disjoint copies of H extend to random graphs

    A random version of the Burr-Erd\H{o}s-Spencer theorem

    Andrea Freschi +2

  49. math.CO 2026-05-21 reviewed
    Strict pattern counts speed Ehrhart computation for Gelfand-Tsetlin polytopes

    Fast computation of Ehrhart polynomials of Gelfand--Tsetlin polytopes via Macdonald reciprocity

    Per Alexandersson

  50. math.AG 2026-05-21 reviewed
    Generic polynomials on product spaces lack Cartesian structure

    On the structure and generic non-Cartesianity of polynomials in product spaces

    Chun-Yen Shen +2